Python's uuid module cause c runtime error in ms-windows
This is a very unfortunate glitch, at the moment has no nice solution. Both Blender and Python devs are aware of it.

The problem is with importing uuid (which requests happens to use).

For now, you can workaround this by temporarily disabling ctypes with the uuid module.

See:


http://bugs.python.org/issue17213
http://developer.blender.org/T38364
http://developer.blender.org/T27666


from: addons/io_online_sketchfab/__init__.py

# uuid module causes an error messagebox on windows.
#
# using a dirty workaround to preload uuid without ctypes,
# until blender gets compiled with vs2013
def uuid_workaround():
    import platform
    if platform.system() == "Windows":
        import ctypes
        CDLL = ctypes.CDLL
        ctypes.CDLL = None
        import uuid
        ctypes.CDLL = CDLL

uuid_workaround()




# now import a module which uses 'uuid'
import requests


We'll likely be updating to vc2013 for Blender 2.71, I'm not sure if this resolves the issue though, this needs some further investigation from an ms-windows developer.